AU720383B2 - Stripping composition based on water and anisole - Google Patents
Stripping composition based on water and anisole Download PDFInfo
- Publication number
- AU720383B2 AU720383B2 AU23714/97A AU2371497A AU720383B2 AU 720383 B2 AU720383 B2 AU 720383B2 AU 23714/97 A AU23714/97 A AU 23714/97A AU 2371497 A AU2371497 A AU 2371497A AU 720383 B2 AU720383 B2 AU 720383B2
- Authority
- AU
- Australia
- Prior art keywords
- anisole
- stripping
- water
- constituents
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 41
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 title claims abstract description 38
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000003973 paint Substances 0.000 claims abstract description 17
- 239000000470 constituent Substances 0.000 claims abstract description 13
- 239000004922 lacquer Substances 0.000 claims abstract description 11
- 239000002966 varnish Substances 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000002562 thickening agent Substances 0.000 claims description 6
- 239000012190 activator Substances 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000003112 inhibitor Substances 0.000 claims description 3
- 238000009472 formulation Methods 0.000 abstract description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 6
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 4
- 239000004530 micro-emulsion Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- IAKOZHOLGAGEJT-UHFFFAOYSA-N 1,1,1-trichloro-2,2-bis(p-methoxyphenyl)-Ethane Chemical compound C1=CC(OC)=CC=C1C(C(Cl)(Cl)Cl)C1=CC=C(OC)C=C1 IAKOZHOLGAGEJT-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000003880 polar aprotic solvent Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 1
- ATTZFSUZZUNHBP-UHFFFAOYSA-N Piperonyl sulfoxide Chemical compound CCCCCCCCS(=O)C(C)CC1=CC=C2OCOC2=C1 ATTZFSUZZUNHBP-UHFFFAOYSA-N 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229960001760 dimethyl sulfoxide Drugs 0.000 description 1
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical compound CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
- Paper (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Dental Preparations (AREA)
- Removal Of Specific Substances (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Stripping formulations for paints, varnishes and lacquers based on the constituents anisole and water.
Description
S F Ref: 381248
AUSTRALIA
PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT
ORIGINAL
Name and Address of Applicant: Actual Inventor(s): Address for Service: Invention Title: Elf Atochem S.A.
4 8 Cours Michelet La Defense 92800 Puteaux
FRANCE
Jean-Pierre Lalller Spruson Ferguson, Patent Attorneys Level 33 St Martins Tower, 31 Market Street Sydney, New South Wales, 2000, Australia Stripping Composition Based on Water and Anisole o C C The following statement is a full description of this Invention, Including the best method of performing it known to me/us:- 5845 1 The present invention relates to a stripping composition for paints, varnishes or lacquers covering a substrate.
Stripping compositions for paints and varnishes or lacquers are employed in two ways: by deposition or by immersion. Stripping compositions applied by deposition are generally applied by brushing or spraying. They almost always contain a thickener and are employed at ambient temperature They are usually employed for small tasks or for objects to be stripped which cannot be immersed. This category includes stripping by the general public, professional stripping in the building trade and aeronautic stripping. For stripping by immersion either cold baths (often based on methylene chloride) or hot baths (often based on caustic soda) are employed. They are employed above all for stripping a large number of small articles (industrial stripping).
A stripping composition including, by volume, from 1 to 20 of a polar aprotic solvent such as dimethyl 20 sulphoxide (DMSO) or N-methylpyrrolidinone (NMP) and from 99 to 80 of an ether such as tetrahydrofuran is known from European Patent Specification EP 0490 726.
A stripping composition including, by volume, from 1 to 20 of a polar aprotic solvent like DMSO and NMP and 25 from 99 to 80 of an ether exhibiting a flash point higher than 0°C, a molar volume smaller than 160 and a molecule provided with one or more methoxy groups is already known 2 from European Patent Specification EP 0573 339. The ether may especially be anisole.
Although highly effective in their stripping action, these two above stripping compositions nevertheless have the disadvantage of being costly.
Furthermore, International Patent Specification WO 93/07227 discloses the addition of water to solvents or mixtures of solvents considered to be effective in paint stripping. This document describes compositions containing 1) at least one organic solvent chosen from ethyl acetate, methyl ethyl ketone and toluene, 2) water, 3) at least one thickener and 4) at least one surfactant.
The effectiveness of these compositions is simply proportional to the quantity of organic solvent which is employed and, in any case, inferior to the effectiveness of the pure solvent.
In the stripping industry there is thus a need to r O find other compositions which are lower in cost but which are <S at least as effective as the compositions of the prior art.
20 According to one aspect of the present invention o• there is provided a stripping composition for paints, "varnishes or lacquers, which comprises at least the following
°SS
:two constituents: 1) water, 2) anisole.
"The aqueous compositions of the water-anisole type according to the invention have a paint-stripping 3 effectiveness which is higher than that of anisole employed without water.
The composition according to the invention can be employed in the various sectors of paint stripping: general public stripping, professional stripping in building, industrial stripping, aeronautical stripping.
The constituents are advantageously present in the following proportions: 1) water from 10 to 90 parts by weight, 2) anisole from 10 to 90 parts by weight.
The constituents are preferably present in the following proportions: 1) water from 70 to 80 parts by weight, 2) anisole from 20 to 30 parts by weight.
-The composition according to the invention preferably contains one or more other constituents chosen from activators, thickeners and corrosion inhibitors.
20 The activator may be, for example, chosen from monoethanolamine, aqueous ammonia at a concentration of 30 in water, and formic acid.
The thickener may be, for example, a cellulosebased or polyacrylic compound.
25 The corrosion inhibitor may be, for example, sodium benzoate.
According to another aspect of the present 4 invention, there is provided a method of removing paint, varnish or lacquer from a substrate in which method a stripping composition according to the invention is applied to the painted, varnished or lacquered substrate or the painted, varnished or lacquered substrate is immersed in a stripping composition according to the invention.
According to a further aspect of the invention there is provided use of stripping composition accord-ing to the invention for removing paint, varnish or lacquer from a substrate.
In addition to the above description, the invention will be understood better with the aid of the following examples.
In all these examples, unless indicated otherwise, the content of each constituent of the compositions is shown as percentage by weight based on the total weight of the composition.
Example i: Water-anisole binary ~Paints of the motor vehicle industry were employed 20 for employing the compositions in the industrial sector. The paints are Herberts Glacier White 389 polyester lacquers '•supplied by the Etalon company (France). The coating thickness is 35 to 45 Am. The metal panels employed are made of phosphated steel and have a rectangular covered surface of 90 x 190 mm. The performance on these panels can be generalized to other paints which are easier to strip than polyester paints, which is generally the case with 5 glycerophthalics, alkyds and acrylics. The results appear in the following Table I: TABLE I Compositions 1 Stripping time 2 (seconds) water/anisole (0/100)* 410 water/anisole (25/75) 284 water/anisole (50/50) 264 water/anisole (75/25) 245 water/anisole (100/0)* no stripping r r r r r r r c r Ir rr r 1 The compositions are homogenized in the form of emulsions.
2 Obtained by impregnation of a piece of cotton wool at a temperature of 20 0
C.
Comparative tests.
15 Example 2: Microemulsions The panels, the paints and their deposition are identical with those of Example 1.
The water-anisole compositions can be formulated as thickened emulsions or as thickened microemulsions. The following formulation was prepared, the constituents being in quantities defined in parts by weight: water 50.6 anisole 17 f *I 6 diacetone alcohol 18 Sunaptol 16 7 sodium dodecyl sulphate 7 Methocell 2 The diacetone alcohol makes it easier to obtain a microemulsion as well as the mixture of Sunaptol 16 (surfactant ethoxylated with 16 ethylene oxides, marketed by ICI) and of dodecyl sulphate, another surfactant.
Methocell is the thickener.
This formulation has been found to be as effective, owing to its stripping time of 500 seconds at as a comparative dimethyl sulphoxide/anisole/Methocell mixture (30/70/2 parts by weight) in the same panel stripping test reported in Example 1.
Example 3: Emulsions The following formulation was prepared by employing Metox 15 OE (Metiloil ethoxylated with 15 ethylene oxide units, marketed by Elf Atochem), the constituents being in quantities defined in parts by weight: 20 water anisole 47.5 Metox 15 OE The performance values obtained at 20°C are identical with those obtained with the microemulsion prepared without Methocell, but otherwise with the same quantities of constituents as Example 2, that is a stripping time of 600 seconds.
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Claims (11)
1. Stripping composition for paints, varnishes or lacquers, which comprises at least the following two constituents: 1) water, 2) anisole.
2. Composition according to Claim 1, in which the constituents are present in the following proportions: 1) water from 10 to 90 parts by weight, 2) anisole from 10 to 90 parts by weight.
3. Composition according to Claim 2, in which the constituents are present in the following proportions: 1) water from 70 to 80 parts by weight, 2) anisole from 20 to 30 parts by weight.
4. Composition according to any one of Claims 1 to 3, which additionally contains one or more of other constituents chosen from activators, thickeners and corrosion inhibitors.
5. Composition according to Claim 1 20 substantially as hereinbefore described.
6. Composition according to Claim 1 substantially as described in any one of the Examples.
7. A method of removing paint, varnish, or lacquer from a substrate which method comprises applying to 25 the painted, varnished or lacquered substrate a stripping composition as claimed in any one of Claims 1 to 6.
8. A method of removing paint, varnish or 8 lacquer from a substrate which method comprises immersing the painted, varnished or lacquered substrate in a stripping composition as claimed in any one of Claims 1 to 6.
9. A method according to Claim 7 or 8 substantially as hereinbefore described.
A method according to Claim 7 or 8 substantially as described in any one of the Examples.
11. Use of a stripping composition as claimed in any one of Claims 1 to 5 for removing paint, varnish or lacquer from a substrate. DATED this TWENTIETH day of MAY 1997 Elf Atochem S.A. Patent Attorneys for the Applicant/Nominated Person SPRUSON FERGUSON r r r r r c r r
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR96/06736 | 1996-05-31 | ||
| FR9606736A FR2749315B1 (en) | 1996-05-31 | 1996-05-31 | STRIPPER COMPOSITION BASED ON WATER AND ANISOLE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2371497A AU2371497A (en) | 1997-12-04 |
| AU720383B2 true AU720383B2 (en) | 2000-06-01 |
Family
ID=9492605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU23714/97A Ceased AU720383B2 (en) | 1996-05-31 | 1997-05-30 | Stripping composition based on water and anisole |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US5990063A (en) |
| EP (1) | EP0810273B1 (en) |
| JP (1) | JP2919436B2 (en) |
| KR (1) | KR970074876A (en) |
| CN (1) | CN1061362C (en) |
| AT (1) | ATE183766T1 (en) |
| AU (1) | AU720383B2 (en) |
| BR (1) | BR9703419A (en) |
| CA (1) | CA2207996A1 (en) |
| DE (1) | DE69700447T2 (en) |
| DK (1) | DK0810273T3 (en) |
| ES (1) | ES2137762T3 (en) |
| FR (1) | FR2749315B1 (en) |
| NO (1) | NO972472L (en) |
| NZ (1) | NZ314976A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG73541A1 (en) * | 1997-09-23 | 2000-06-20 | Rohco Inc Mcgean | Paint stripper compositions |
| US6762260B2 (en) * | 2002-03-05 | 2004-07-13 | Dow Global Technologies Inc. | Organoborane amine complex polymerization initiators and polymerizable compositions |
| ES2400155B1 (en) | 2011-08-11 | 2014-02-13 | Universidad De Granada | STRIPPING COMPOSITIONS, PRE-CURRENT COMPOSITIONS OF THE SAME, THEIR PREPARATION PROCEDURE "IN SITU", AND THEIR USE TO STRIP PAINT, VARNISH AND LACQUER |
| CN104893403A (en) * | 2015-06-06 | 2015-09-09 | 程潮 | Plastic surface paint remover |
| CN109135407A (en) * | 2017-06-28 | 2019-01-04 | 四川大学 | A kind of room temperature watery paint remover and its preparation and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993007227A1 (en) * | 1991-10-11 | 1993-04-15 | Minnesota Mining And Manufacturing Company | Aqueous based composition containing organic solvents for removing coatings |
| US5753603A (en) * | 1992-06-02 | 1998-05-19 | Elf Atochem S.A. | Paint stripping composition |
| US5851972A (en) * | 1997-02-25 | 1998-12-22 | Elf Atochem North America, Inc. | Water in oil emulsions containing anisole |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4171240A (en) * | 1978-04-26 | 1979-10-16 | Western Electric Company, Inc. | Method of removing a cured epoxy from a metal surface |
| US4518518A (en) * | 1983-03-30 | 1985-05-21 | Amchem Products, Inc. | Cold paint stripping composition |
| NO841249L (en) * | 1983-04-04 | 1984-10-05 | Shinetsu Chemical Co | PROCEDURE FOR REMOVING FOLDED POLYMER SHELL ON REACTOR WALLS AND MEASURES FOR IMPLEMENTING THE PROCEDURE |
| US4623611A (en) * | 1985-01-16 | 1986-11-18 | General Electric Company | Photolithographic stripping method for removing contrast enhancement layer |
| US5128230A (en) * | 1986-12-23 | 1992-07-07 | Shipley Company Inc. | Quinone diazide containing photoresist composition utilizing mixed solvent of ethyl lactate, anisole and amyl acetate |
| US4854973A (en) * | 1987-04-06 | 1989-08-08 | Nch Corporation | Low odor carbon and paint remover composition |
| US4956115A (en) * | 1989-05-23 | 1990-09-11 | Hoechst Celanese Corporation | Water borne solvent strippers |
| US4992187A (en) * | 1989-11-15 | 1991-02-12 | Petro Chemical Products, Inc. | Composition for cleaning an internal combustion engine |
| DE3938107A1 (en) * | 1989-11-16 | 1991-05-23 | Hoechst Ag | DEVELOPER CONCENTRATE AND DEVELOPER PRODUCED THEREOF FOR EXPOSED NEGATIVE REPRODUCTION LAYERS AND METHOD FOR THE PRODUCTION OF PRINTING FORMS |
| DE3938108A1 (en) * | 1989-11-16 | 1991-05-23 | Hoechst Ag | DEVELOPER CONCENTRATE AND DEVELOPER PRODUCED FROM IT FOR EXPOSED NEGATIVE REPRODUCTION LAYERS WITH COATING LAYER AND METHOD FOR THE PRODUCTION OF PRINTING FORMS |
| US5011621A (en) * | 1990-06-04 | 1991-04-30 | Arco Chemical Technology, Inc. | Paint stripper compositions containing N-methyl-2-pyrrolidone and renewable resources |
| EP0490726B1 (en) * | 1990-12-07 | 1995-04-19 | Elf Atochem S.A. | Use of a composition for paint stripping |
| IT1245398B (en) * | 1991-03-22 | 1994-09-20 | Silvani Antincendi Spa | Composition for the washing and cleaning of vulcanization moulds |
| US5232515A (en) * | 1991-09-19 | 1993-08-03 | Arco Chemical Technology, L.P. | Water-reducible coating removers containing n-methyl-2-pyrrolidone |
| GB9309604D0 (en) * | 1993-05-10 | 1993-06-23 | Hercules Inc | Process for the manufacture of alkyl ketene dimer |
-
1996
- 1996-05-31 FR FR9606736A patent/FR2749315B1/en not_active Expired - Fee Related
-
1997
- 1997-05-26 DE DE69700447T patent/DE69700447T2/en not_active Expired - Fee Related
- 1997-05-26 DK DK97401144T patent/DK0810273T3/en active
- 1997-05-26 AT AT97401144T patent/ATE183766T1/en not_active IP Right Cessation
- 1997-05-26 EP EP97401144A patent/EP0810273B1/en not_active Expired - Lifetime
- 1997-05-26 ES ES97401144T patent/ES2137762T3/en not_active Expired - Lifetime
- 1997-05-30 NZ NZ314976A patent/NZ314976A/en unknown
- 1997-05-30 AU AU23714/97A patent/AU720383B2/en not_active Ceased
- 1997-05-30 NO NO972472A patent/NO972472L/en not_active Application Discontinuation
- 1997-05-30 US US08/866,054 patent/US5990063A/en not_active Expired - Fee Related
- 1997-05-30 CA CA002207996A patent/CA2207996A1/en not_active Abandoned
- 1997-05-31 CN CN97113578A patent/CN1061362C/en not_active Expired - Fee Related
- 1997-05-31 KR KR1019970022364A patent/KR970074876A/en not_active Ceased
- 1997-06-02 BR BR9703419A patent/BR9703419A/en active Search and Examination
- 1997-06-02 JP JP9159241A patent/JP2919436B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993007227A1 (en) * | 1991-10-11 | 1993-04-15 | Minnesota Mining And Manufacturing Company | Aqueous based composition containing organic solvents for removing coatings |
| US5753603A (en) * | 1992-06-02 | 1998-05-19 | Elf Atochem S.A. | Paint stripping composition |
| US5851972A (en) * | 1997-02-25 | 1998-12-22 | Elf Atochem North America, Inc. | Water in oil emulsions containing anisole |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2137762T3 (en) | 1999-12-16 |
| NZ314976A (en) | 1999-03-29 |
| JPH1053735A (en) | 1998-02-24 |
| AU2371497A (en) | 1997-12-04 |
| KR970074876A (en) | 1997-12-10 |
| DK0810273T3 (en) | 2000-03-20 |
| EP0810273A1 (en) | 1997-12-03 |
| FR2749315A1 (en) | 1997-12-05 |
| FR2749315B1 (en) | 1998-08-14 |
| NO972472L (en) | 1997-12-01 |
| DE69700447T2 (en) | 2000-05-04 |
| CA2207996A1 (en) | 1997-11-30 |
| CN1061362C (en) | 2001-01-31 |
| US5990063A (en) | 1999-11-23 |
| MX9704086A (en) | 1998-06-30 |
| CN1168910A (en) | 1997-12-31 |
| NO972472D0 (en) | 1997-05-30 |
| BR9703419A (en) | 1998-09-15 |
| EP0810273B1 (en) | 1999-08-25 |
| JP2919436B2 (en) | 1999-07-12 |
| ATE183766T1 (en) | 1999-09-15 |
| DE69700447D1 (en) | 1999-09-30 |
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